Littelfuse JTD-125ID - Medium Voltage Fuse 125A (5.5kV, 50kA Interrupt Rating)

Littelfuse JTD-125ID is a medium-voltage current-limiting fuse designed for protecting electrical equipment from short-circuit faults. It features a 125A current rating and 5.5kV voltage rating, with a compact cylindrical design constructed with durable ceramic housing and silver-element construction for reliable operation. The fuse meets IEEE C37.41 standards and is UL/CSA certified for industrial power distribution systems. Typical applications include motor protection, transformer circuits, and medium-voltage switchgear in utility and industrial environments.

Key Features & Specifications

• Type: Current-limiting medium-voltage fuse with ceramic body and silver-element construction
• Voltage Rating: 5.5kV AC
• Current Rating: 125A
• Dimensions: 152mm length x 76mm diameter
• Standards: IEEE C37.41, UL/CSA certified
• Applications: Motor protection, transformer circuits, switchgear
• Fuse Class: JTD series
• Interrupting Rating: 50kA symmetrical
• Operating Temperature: -40°C to +85°C
• Mounting: Bolt-on terminal connection

Product Identification

• UPC: 7945820226
• GTIN: 007945802226